禽营养与饲料 POULTRY NUTRITION AND FEED

凝结芽孢杆菌对热应激肉鸡生长性能及血清指标的影响

  • 王乙茹 ,
  • 柳成东 ,
  • 白华毅 ,
  • 屈娥 ,
  • 赵平 ,
  • 李琦华 ,
  • PHOUTHAPANE Vanhnaseng ,
  • 程志斌
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  • 1. 云南农业大学动物科学技术学院, 昆明 650201;
    2. 老挝科技部生物技术与生态研究所, 万象 2279
王乙茹(1993-),女,四川南充人,硕士研究生,研究方向为单胃动物营养与饲料科学。E-mail:784049125@qq.com

收稿日期: 2019-11-12

  网络出版日期: 2020-05-15

基金资助

云南省重点研发计划项目(2019IB012);云南省重大科技专项(2016ZA008)

Effects of Bacillus coagulans on Growth Performance and Serum Indices of Broiler Chickens under Heat Stress

  • WANG Yiru ,
  • LIU Chengdong ,
  • BAI Huayi ,
  • QU E ,
  • ZHAO Ping ,
  • LI Qihua ,
  • PHOUTHAPANE Vanhnaseng ,
  • CHENG Zhibin
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  • 1. College of Animal Science and Technology, Yunnan Agricultural University, Kunming 650201, China;
    2. Biotechnology and Ecology Institute, Ministry of Science and Technology, Vientiane 2279, Laos

Received date: 2019-11-12

  Online published: 2020-05-15

摘要

本试验旨在研究凝结芽孢杆菌对热应激肉鸡生长性能及血清指标的影响。选取健康的28日龄爱拔益加(AA)肉公鸡240只,随机分为3组,每组8个重复,每个重复10只鸡。正常温度组(Ⅰ组)肉鸡饲养于(22±1) ℃正常温度环境,饲喂基础饲粮;热应激组(Ⅱ组)肉鸡饲养于(35±1) ℃的极端高温环境,饲喂基础饲粮;热应激+凝结芽孢杆菌组(Ⅲ组)肉鸡饲养于(35±1) ℃的极端高温环境,饲喂基础饲粮+1.3 kg/t凝结芽孢杆菌。试验期14 d。结果表明:与Ⅰ组相比,Ⅱ和Ⅲ组的料重比、直肠温度以及血清皮质酮、尿酸(UA)、低密度胆固醇脂蛋白(LDL-C)和干扰素-γ(IFN-γ)含量显著升高(P<0.05),末重、平均日增重、平均日采食量,血清总蛋白(TP)、白蛋白(ALB)、高密度脂蛋白胆固醇(HDL-C)和白细胞介素-10(IL-10)含量以及过氧化氢酶(CAT)活性显著降低(P<0.05)。与Ⅱ组相比,Ⅲ组的料重比,血清皮质酮、UA、甘油三脂(TG)、LDL-C、丙二醛(MDA)和IFN-γ含量以及肌酸激酶(CK)、谷丙转氨酶(ALT)、谷草转氨酶(AST)、γ-谷氨酰转移酶(GGT)活性显著降低(P<0.05),平均日增重以及血清CAT活性和IL-10含量显著提高(P<0.05)。综上所述,饲粮添加凝结芽孢杆菌通过减轻机体氧化损伤和炎症反应,一定程度上改善了热应激肉鸡的生长性能。

本文引用格式

王乙茹 , 柳成东 , 白华毅 , 屈娥 , 赵平 , 李琦华 , PHOUTHAPANE Vanhnaseng , 程志斌 . 凝结芽孢杆菌对热应激肉鸡生长性能及血清指标的影响[J]. 动物营养学报, 2020 , 32(5) : 2148 -2157 . DOI: 10.3969/j.issn.1006-267x.2020.05.023

Abstract

This experiment was conducted to study the effects of Bacillus coagulans on growth performance and serum indices of broiler chickens under heat stress. Two hundred and forty 28-day-old healthy male Arbor Acres broiler chickens were randomly divided into 3 groups with 8 replicates per group and 10 broilers per replicate. Broiler chickens in normal temperature group (group Ⅰ) were raised in the normal temperature environment of (22±1)℃, and fed a basal diet; broiler chickens in heat stress group (group Ⅱ) were raised in an extremely high temperature environment of (35±1)℃, and fed a basal diet; broiler chickens in heat stress+Bacillus coagulans group (group Ⅲ) were raised in an extremely high temperature environment of (35±1)℃, and fed the basal diet+1.3 kg/t Bacillus coagulans. The experiment lasted for 14 days. The results showed that compared with group Ⅰ, the feed to gain ratio, rectal temperature and contents of corticosterone, uric acid (UA), low density lipoprotein cholesterol (LDL-C) and interferon-γ (IFN-γ) in serum of groups Ⅱ and Ⅲ were significantly increased (P<0.05), while the final body weight, average daily gain, average daily intake and contents of total protein (TP), albumin (ALB), high density lipoprotein-cholesterol (HDL-C), interleukin-10 (IL-10) and catalase (CAT) activity in serum were significantly decreased (P<0.05). Compared with group Ⅱ, the feed to gain ratio and contents of corticosterone, UA, triglyceride (TG), LDL-C, malondialdehyde (MDA) and IFN-γ, as well as the activities of creatine kinase (CK), alanine aminotransferase (ALT), aspartate aminotransferase (AST) and γ-glutamyl transferase (GGT) in serum of group Ⅲ were significantly decreased (P<0.05), while the average daily gain and CAT activity and IL-10 content in serum were significantly increased (P<0.05). In conclusion, dietary supplementation of Bacillus coagulans can reduce the oxidative damage and inflammation response, and partly improve the growth performance of broiler chickens under heat stress.

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